Improvement in coal-stoves



BUSH @L 1110111111113.

Coal Stove. i No. 71,129. 115119111611101. 19, 1861 Ihnen/vr @www Qqcmm @1Q/1g @einen tat-25 attnt @frn WILLIAM M. BUSH AND THOMAS B. RICHARDS, 0F CINCINNATI, OHIO. Lam Patent No. 71,129, daad November I9, 1867.

IMPROVEMENT IN cont-sucres..

TO ALL WHOM IT MAY CONCERN: I

Be it known that we, WILLIAM M. BUSH and THOMAS B. RICHARDS, both of Cincinnati, in the county of Hamilton, and State of Ohio, have invented a new and useful Improvement in Gas or Smoke-ConsumingCoal- Stoves; and we do hereby declare thatthe following is a full, clear, and exactdescription of thc lconstruction and operation of the same, reference being had to the annexed drawings, `makinga part of this specification, y

in which- Y Figure 1 represents a perspective view of a stovecontaining our improvement, and

Figure 2 represents a vertical central section of the same stove;` .4

The combustion of coal, and especially of b' vuminous coal, is attended with the loss of a considerable amount of fuel, which passes off unconsumecl in the form of gas o1' smoke.- Where bituminous coal is used, the smoke is dense, eoo'ty, and penetrating, and many efforts have been made to effect its entireA combustion.

Our improvement is directed to this end, and consists in admittingthe'air or oxygen above a concentrating plate or diaphragm to a point where it comes in contact with the ascending and concentrated gases, so as to e'ect their rapid and thorough combustion. z

Our device consists of a concentrating plate or diaphragm, B,lprovided with aperture or chimney, C, ,y

and covering the {ire-potAD. The aperture or chimney, C, is provided-with an interior'ring, ange, or oiset, E E, and is perforated with holes X X X just below the ring. ,Above the Aplate-B isplaced a second` plate, H,

extending across the stove, but provided with an aperture,'s' o lmade as to tit closely about :the upper part ofthe 4chimney C. Holes are made in the exterior casing of' the stove, asA shown at S S S'. door,vF,'opens above plate H, and is provided with an aperture, G, covered with wire gauze, or its equivalent, so` as to permit the admission of air. i l

In operation, the plate B concentrates ythe smoke and-gam'land compels them to passfinto the chimney C, where they are still further concentrated by the'ring orfilan'ge E. Air is admitted through-.the holes S S Sinto the annular ilue or passageM, between plates B and H, It enters the chimney, C, through perforations X X X,

just below the ring E, or it may be introduced at the junction of the chimney withplate-B, orthrough perforations in the plate B nea-r the aperture C. rllhe' oxygen of the air is thus brought in contact with the smoke and gas at or near the point of greatest concentration, andthe latter are consumed with great efficiency.

v Instead of entering the space Mbetween the plates, by means of the apertures S S S, the air. mayA enter at the bottom of the stove, may pass-upward between .the lrep'ot and 'an outer casing, and so into the spaceM; but, in this case, the re-potmust be'closely coveredA by plate B, as in the drawing, so that no air can enter under the edges of said plate, and so that the air must enter over plate B, through space M, to the apertures at or near the chimney. A radiator, 0, maybe placed in the upper part ofthe'chamber N. "Black arrows indicate the direction of the smoke and red ones the direction of the air currents.

We do not claim the invention of a concentrating plate, nor broadly the introduction of external airin connection with such plate; but what we d`o claim as our invention is A 1. The combination of the annular horizontal plate H and annular converging plate B, forming a close due for the admission of air, with the chiinney C, substantially as shown.

2. The concentrating flange or ring E, in connection with the chimney C and plate B, substantially as described.

WM. M. BUSH,

THOS. B. RICHARDS.

Witnesses: ,v *A

SAM. S. FISHER, JOHN C. Monms. 

